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Vulnerabilities

Vulnerability · CVE-2025-1400

Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

Published May 7, 2025 · catalog updated May 7, 2025 · Out-of-bounds Read vulnerability in

Check this week

CVE-2025-1400 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Out-of-bounds Read vulnerability in.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Out-of-bounds Read vulnerability in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
24.00%
Remediation
Vendor / distro source
Affected products
vendor libplctag libplctag 2.0 ≤2.6.3

Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor libplctag libplctag 2.0 ≤2.6.32.0 ≤2.6.3

How to fix CVE-2025-1400

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-1400 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Out-of-bounds Read vulnerability in.

Which versions are affected?

Compare what you have installed with libplctag libplctag 2.0 ≤2.6.3 2.0 ≤2.6.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 24.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2025 · EUVD

    Detected

    Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

  2. May 7, 2025 · EUVD

    Updated

    Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

Sources

  • CVE.orgVulnerability recordCVE-2025-1400

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-13678

    Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.